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href="../../../core/aggregation-pipeline.html">Aggregation Pipeline</a><ul><li class="toctree-l3"><a class="reference internal" href="../../../core/aggregation-pipeline-optimization.html">Aggregation Pipeline Optimization</a></li><li class="toctree-l3"><a class="reference internal" href="../../../core/aggregation-pipeline-limits.html">Aggregation Pipeline Limits</a></li><li class="toctree-l3"><a class="reference internal" href="../../../core/aggregation-pipeline-sharded-collections.html">Aggregation Pipeline and Sharded Collections</a></li><li class="toctree-l3"><a class="reference internal" href="../../../tutorial/aggregation-zip-code-data-set.html">Example with ZIP Code Data</a></li><li class="toctree-l3"><a class="reference internal" href="../../../tutorial/aggregation-with-user-preference-data.html">Example with User Preference Data</a></li></ul></li><li class="toctree-l2"><a class="reference internal" href="../../../core/map-reduce.html">Map-Reduce</a><ul><li class="toctree-l3"><a class="reference internal" href="../../../core/map-reduce-sharded-collections.html">Map-Reduce and Sharded Collections</a></li><li class="toctree-l3"><a class="reference internal" href="../../../core/map-reduce-concurrency.html">Map-Reduce Concurrency</a></li><li class="toctree-l3"><a class="reference internal" href="../../../tutorial/map-reduce-examples.html">Map-Reduce Examples</a></li><li class="toctree-l3"><a class="reference internal" href="../../../tutorial/perform-incremental-map-reduce.html">Perform Incremental Map-Reduce</a></li><li class="toctree-l3"><a class="reference internal" href="../../../tutorial/troubleshoot-map-function.html">Troubleshoot the Map Function</a></li><li class="toctree-l3"><a class="reference internal" href="../../../tutorial/troubleshoot-reduce-function.html">Troubleshoot the Reduce Function</a></li></ul></li><li class="toctree-l2"><a class="reference internal" href="../../aggregation.html">Aggregation Reference</a><ul><li class="toctree-l3"><a class="reference internal" href="../../../meta/aggregation-quick-reference.html">Aggregation Pipeline Quick Reference</a></li><li class="toctree-l3"><a class="reference internal" href="interface.html">Aggregation Commands</a></li><li class="toctree-l3"><a class="reference internal" href="../../aggregation-commands-comparison.html">Aggregation Commands Comparison</a></li><li class="toctree-l3"><a class="reference internal" href="../../aggregation-variables.html">Variables in Aggregation Expressions</a></li><li class="toctree-l3"><a class="reference internal" href="../../sql-aggregation-comparison.html">SQL to Aggregation Mapping Chart</a></li></ul></li></ul></li><li class="toctree-l1"><a class="reference internal" href="../../../data-modeling.html">Data Models</a><ul><li class="toctree-l2"><a class="reference internal" href="../../../core/data-modeling-introduction.html">Data Modeling Introduction</a></li><li class="toctree-l2"><a class="reference internal" href="../../../core/schema-validation.html">Schema Validation</a></li><li class="toctree-l2"><a class="reference internal" href="../../../core/data-models.html">Data Modeling Concepts</a><ul><li class="toctree-l3"><a class="reference internal" href="../../../core/data-model-design.html">Data Model Design</a></li><li class="toctree-l3"><a class="reference internal" href="../../../core/data-model-operations.html">Operational Factors and Data Models</a></li></ul></li><li class="toctree-l2"><a class="reference internal" href="../../../applications/data-models.html">Data Model Examples and Patterns</a><ul><li class="toctree-l3"><a class="reference internal" href="../../../applications/data-models-relationships.html">Model Relationships Between Documents</a><ul><li class="toctree-l4"><a class="reference internal" href="../../../tutorial/model-embedded-one-to-one-relationships-between-documents.html">Model One-to-One Relationships with Embedded Documents</a></li><li class="toctree-l4"><a class="reference internal" href="../../../tutorial/model-embedded-one-to-many-relationships-between-documents.html">Model One-to-Many Relationships with Embedded Documents</a></li><li class="toctree-l4"><a class="reference internal" href="../../../tutorial/model-referenced-one-to-many-relationships-between-documents.html">Model One-to-Many Relationships with Document References</a></li></ul></li><li class="toctree-l3"><a class="reference internal" href="../../../applications/data-models-tree-structures.html">Model Tree Structures</a><ul><li class="toctree-l4"><a class="reference internal" href="../../../tutorial/model-tree-structures-with-parent-references.html">Model Tree Structures with Parent References</a></li><li class="toctree-l4"><a class="reference internal" href="../../../tutorial/model-tree-structures-with-child-references.html">Model Tree Structures with Child References</a></li><li class="toctree-l4"><a class="reference internal" href="../../../tutorial/model-tree-structures-with-ancestors-array.html">Model Tree Structures with an Array of Ancestors</a></li><li class="toctree-l4"><a class="reference internal" href="../../../tutorial/model-tree-structures-with-materialized-paths.html">Model Tree Structures with Materialized Paths</a></li><li class="toctree-l4"><a class="reference internal" href="../../../tutorial/model-tree-structures-with-nested-sets.html">Model Tree Structures with Nested Sets</a></li></ul></li><li class="toctree-l3"><a class="reference internal" href="../../../applications/data-models-applications.html">Model Specific Application Contexts</a><ul><li class="toctree-l4"><a class="reference internal" href="../../../tutorial/model-data-for-atomic-operations.html">Model Data for Atomic Operations</a></li><li class="toctree-l4"><a class="reference internal" href="../../../tutorial/model-data-for-keyword-search.html">Model Data to Support Keyword Search</a></li><li class="toctree-l4"><a class="reference internal" href="../../../tutorial/model-data-for-schema-versioning.html">Model Data for Schema Versioning</a></li><li class="toctree-l4"><a class="reference internal" href="../../../tutorial/model-monetary-data.html">Model Monetary Data</a></li><li class="toctree-l4"><a class="reference internal" href="../../../tutorial/model-time-data.html">Model Time Data</a></li><li class="toctree-l4"><a class="reference internal" href="../../../tutorial/model-computed-data.html">Model Computed Data</a></li></ul></li></ul></li><li class="toctree-l2"><a class="reference internal" href="../../data-models.html">Data Model Reference</a><ul><li class="toctree-l3"><a class="reference internal" href="../../database-references.html">Database References</a></li></ul></li></ul></li><li class="toctree-l1"><a class="reference internal" href="../../../core/transactions.html">Transactions</a><ul><li class="toctree-l2"><a class="reference internal" href="../../../core/transactions-in-applications.html">Drivers API</a></li><li class="toctree-l2"><a class="reference internal" href="../../../core/transactions-production-consideration.html">Production Considerations</a></li><li class="toctree-l2"><a class="reference internal" href="../../../core/transactions-sharded-clusters.html">Production Considerations (Sharded Clusters)</a></li><li class="toctree-l2"><a class="reference internal" href="../../../core/transactions-operations.html">Transactions and Operations</a></li></ul></li><li class="toctree-l1"><a class="reference internal" href="../../../indexes.html">Indexes</a><ul><li class="toctree-l2"><a class="reference internal" href="../../../core/index-single.html">Single Field Indexes</a></li><li class="toctree-l2"><a class="reference internal" href="../../../core/index-compound.html">Compound Indexes</a></li><li class="toctree-l2"><a class="reference internal" href="../../../core/index-multikey.html">Multikey Indexes</a><ul><li class="toctree-l3"><a class="reference internal" href="../../../core/multikey-index-bounds.html">Multikey Index Bounds</a></li></ul></li><li class="toctree-l2"><a class="reference internal" href="../../../core/index-text.html">Text Indexes</a><ul><li class="toctree-l3"><a class="reference internal" href="../../../tutorial/specify-language-for-text-index.html">Specify a Language for Text Index</a></li><li class="toctree-l3"><a class="reference internal" href="../../../tutorial/avoid-text-index-name-limit.html">Specify Name for <code class="docutils literal"><span class="pre">text</span></code> Index</a></li><li class="toctree-l3"><a class="reference internal" href="../../../tutorial/control-results-of-text-search.html">Control Search Results with Weights</a></li><li class="toctree-l3"><a class="reference internal" href="../../../tutorial/limit-number-of-items-scanned-for-text-search.html">Limit the Number of Entries Scanned</a></li></ul></li><li class="toctree-l2"><a class="reference internal" href="../../../core/index-wildcard.html">Wildcard Indexes</a><ul><li class="toctree-l3"><a class="reference internal" href="../../index-wildcard-restrictions.html">Wildcard Index Restrictions</a></li></ul></li><li class="toctree-l2"><a class="reference internal" href="../../../core/2dsphere.html"><code class="docutils literal"><span class="pre">2dsphere</span></code> Indexes</a><ul><li class="toctree-l3"><a class="reference internal" href="../../../tutorial/query-a-2dsphere-index.html">Query a <code class="docutils literal"><span class="pre">2dsphere</span></code> Index</a></li></ul></li><li class="toctree-l2"><a class="reference internal" href="../../../core/2d.html"><code class="docutils literal"><span class="pre">2d</span></code> Indexes</a><ul><li class="toctree-l3"><a class="reference internal" href="../../../tutorial/build-a-2d-index.html">Create a <code class="docutils literal"><span class="pre">2d</span></code> Index</a></li><li class="toctree-l3"><a class="reference internal" href="../../../tutorial/query-a-2d-index.html">Query a <code class="docutils literal"><span class="pre">2d</span></code> Index</a></li><li class="toctree-l3"><a class="reference internal" href="../../../core/geospatial-indexes.html"><code class="docutils literal"><span class="pre">2d</span></code> Index Internals</a></li><li class="toctree-l3"><a class="reference internal" href="../../../tutorial/calculate-distances-using-spherical-geometry-with-2d-geospatial-indexes.html">Calculate Distance Using Spherical Geometry</a></li></ul></li><li class="toctree-l2"><a class="reference internal" href="../../../core/geohaystack.html"><code class="docutils literal"><span class="pre">geoHaystack</span></code> Indexes</a><ul><li class="toctree-l3"><a class="reference internal" href="../../../tutorial/build-a-geohaystack-index.html">Create a Haystack Index</a></li><li class="toctree-l3"><a class="reference internal" href="../../../tutorial/query-a-geohaystack-index.html">Query a Haystack Index</a></li></ul></li><li class="toctree-l2"><a class="reference internal" href="../../../core/index-hashed.html">Hashed Indexes</a></li><li class="toctree-l2"><a class="reference internal" href="../../../core/index-properties.html">Index Properties</a><ul><li class="toctree-l3"><a class="reference internal" href="../../../core/index-ttl.html">TTL Indexes</a><ul><li class="toctree-l4"><a class="reference internal" href="../../../tutorial/expire-data.html">Expire Data from Collections by Setting TTL</a></li></ul></li><li class="toctree-l3"><a class="reference internal" href="../../../core/index-unique.html">Unique Indexes</a></li><li class="toctree-l3"><a class="reference internal" href="../../../core/index-partial.html">Partial Indexes</a></li><li class="toctree-l3"><a class="reference internal" href="../../../core/index-case-insensitive.html">Case Insensitive Indexes</a></li><li class="toctree-l3"><a class="reference internal" href="../../../core/index-sparse.html">Sparse Indexes</a></li></ul></li><li class="toctree-l2"><a class="reference internal" href="../../../core/index-creation.html">Index Builds on Populated Collections</a><ul><li class="toctree-l3"><a class="reference internal" href="../../../tutorial/build-indexes-on-replica-sets.html">Build Indexes on Replica Sets</a></li><li class="toctree-l3"><a class="reference internal" href="../../../tutorial/build-indexes-on-sharded-clusters.html">Build Indexes on Sharded Clusters</a></li></ul></li><li class="toctree-l2"><a class="reference internal" href="../../../core/index-intersection.html">Index Intersection</a></li><li class="toctree-l2"><a class="reference internal" href="../../../tutorial/manage-indexes.html">Manage Indexes</a></li><li class="toctree-l2"><a class="reference internal" href="../../../tutorial/measure-index-use.html">Measure Index Use</a></li><li class="toctree-l2"><a class="reference internal" href="../../../applications/indexes.html">Indexing Strategies</a><ul><li class="toctree-l3"><a class="reference internal" href="../../../tutorial/create-indexes-to-support-queries.html">Create Indexes to Support Your Queries</a></li><li class="toctree-l3"><a class="reference internal" href="../../../tutorial/sort-results-with-indexes.html">Use Indexes to Sort Query Results</a></li><li class="toctree-l3"><a class="reference internal" href="../../../tutorial/ensure-indexes-fit-ram.html">Ensure Indexes Fit in RAM</a></li><li class="toctree-l3"><a class="reference internal" href="../../../tutorial/create-queries-that-ensure-selectivity.html">Create Queries that Ensure Selectivity</a></li></ul></li><li class="toctree-l2"><a class="reference internal" href="../../indexes.html">Indexing Reference</a></li></ul></li><li class="toctree-l1"><a class="reference internal" href="../../../security.html">Security</a><ul><li class="toctree-l2"><a class="reference internal" href="../../../administration/security-checklist.html">Security Checklist</a></li><li class="toctree-l2"><a class="reference internal" href="../../../tutorial/enable-authentication.html">Enable Access Control</a></li><li class="toctree-l2"><a class="reference internal" href="../../../core/authentication.html">Authentication</a><ul><li class="toctree-l3"><a class="reference internal" href="../../../core/security-users.html">Users</a><ul><li class="toctree-l4"><a class="reference internal" href="../../../tutorial/create-users.html">Add Users</a></li></ul></li><li class="toctree-l3"><a class="reference internal" href="../../../core/authentication-mechanisms.html">Authentication Mechanisms</a><ul><li class="toctree-l4"><a class="reference internal" href="../../../core/security-scram.html">SCRAM</a></li><li class="toctree-l4"><a class="reference internal" href="../../../core/security-x.509.html">x.509</a><ul><li class="toctree-l5"><a class="reference internal" href="../../../tutorial/configure-x509-client-authentication.html">Use x.509 Certificates to Authenticate Clients</a></li></ul></li></ul></li><li class="toctree-l3"><a class="reference internal" href="../../../core/authentication-mechanisms-enterprise.html">Enterprise Authentication Mechanisms</a><ul><li class="toctree-l4"><a class="reference internal" href="../../../core/kerberos.html">Kerberos Authentication</a><ul><li class="toctree-l5"><a class="reference internal" href="../../../tutorial/control-access-to-mongodb-with-kerberos-authentication.html">Configure MongoDB with Kerberos Authentication on Linux</a></li><li class="toctree-l5"><a class="reference internal" href="../../../tutorial/control-access-to-mongodb-windows-with-kerberos-authentication.html">Configure MongoDB with Kerberos Authentication on Windows</a></li><li class="toctree-l5"><a class="reference internal" href="../../../tutorial/troubleshoot-kerberos.html">Troubleshoot Kerberos Authentication</a></li><li class="toctree-l5"><a class="reference internal" href="../../../tutorial/kerberos-auth-activedirectory-authz.html">Configure MongoDB with Kerberos Authentication and Active Directory Authorization</a></li></ul></li><li class="toctree-l4"><a class="reference internal" href="../../../core/security-ldap.html">LDAP Proxy Authentication</a><ul><li class="toctree-l5"><a class="reference internal" href="../../../tutorial/configure-ldap-sasl-activedirectory.html">Authenticate Using SASL and LDAP with ActiveDirectory</a></li><li class="toctree-l5"><a class="reference internal" href="../../../tutorial/configure-ldap-sasl-openldap.html">Authenticate Using SASL and LDAP with OpenLDAP</a></li><li class="toctree-l5"><a class="reference internal" href="../../../tutorial/authenticate-nativeldap-activedirectory.html">Authenticate and Authorize Users Using Active Directory via Native LDAP</a></li></ul></li><li class="toctree-l4"><a class="reference internal" href="../../../core/security-ldap-external.html">LDAP Authorization</a></li></ul></li><li class="toctree-l3"><a class="reference internal" href="../../../core/security-internal-authentication.html">Internal/Membership Authentication</a><ul><li class="toctree-l4"><a class="reference internal" href="../../../tutorial/deploy-replica-set-with-keyfile-access-control.html">Deploy Replica Set With Keyfile Authentication</a></li><li class="toctree-l4"><a class="reference internal" href="../../../tutorial/enforce-keyfile-access-control-in-existing-replica-set.html">Update Replica Set to Keyfile Authentication</a></li><li class="toctree-l4"><a class="reference internal" href="../../../tutorial/enforce-keyfile-access-control-in-existing-replica-set-without-downtime.html">Update Replica Set to Keyfile Authentication (No Downtime)</a></li><li class="toctree-l4"><a class="reference internal" href="../../../tutorial/rotate-key-replica-set.html">Rotate Keys for Replica Sets</a></li><li class="toctree-l4"><a class="reference internal" href="../../../tutorial/deploy-sharded-cluster-with-keyfile-access-control.html">Deploy Sharded Cluster with Keyfile Authentication</a></li><li class="toctree-l4"><a class="reference internal" href="../../../tutorial/enforce-keyfile-access-control-in-existing-sharded-cluster.html">Update Sharded Cluster to Keyfile Authentication</a></li><li class="toctree-l4"><a class="reference internal" href="../../../tutorial/enforce-keyfile-access-control-in-existing-sharded-cluster-no-downtime.html">Update Sharded Cluster to Keyfile Authentication (No Downtime)</a></li><li class="toctree-l4"><a class="reference internal" href="../../../tutorial/rotate-key-sharded-cluster.html">Rotate Keys for Sharded Clusters</a></li><li class="toctree-l4"><a class="reference internal" href="../../../tutorial/configure-x509-member-authentication.html">Use x.509 Certificate for Membership Authentication</a></li><li class="toctree-l4"><a class="reference internal" href="../../../tutorial/upgrade-keyfile-to-x509.html">Upgrade from Keyfile Authentication to x.509 Authentication</a></li><li class="toctree-l4"><a class="reference internal" href="../../../tutorial/rotate-x509-membership-certificates.html">Rolling Update of x.509 Cluster Certificates that Contain New DN</a></li></ul></li></ul></li><li class="toctree-l2"><a class="reference internal" href="../../../core/authorization.html">Role-Based Access Control</a><ul><li class="toctree-l3"><a class="reference internal" href="../../built-in-roles.html">Built-In Roles</a></li><li class="toctree-l3"><a class="reference internal" href="../../../core/security-user-defined-roles.html">User-Defined Roles</a></li><li class="toctree-l3"><a class="reference internal" href="../../../tutorial/manage-users-and-roles.html">Manage Users and Roles</a></li><li class="toctree-l3"><a class="reference internal" href="../../../tutorial/change-own-password-and-custom-data.html">Change Your Password and Custom Data</a></li><li class="toctree-l3"><a class="reference internal" href="../../../core/collection-level-access-control.html">Collection-Level Access Control</a></li></ul></li><li class="toctree-l2"><a class="reference internal" href="../../../core/security-transport-encryption.html">TLS/SSL (Transport Encryption)</a><ul><li class="toctree-l3"><a class="reference internal" href="../../../tutorial/configure-ssl.html">Configure <code class="docutils literal"><span class="pre">mongod</span></code> and <code class="docutils literal"><span class="pre">mongos</span></code> for TLS/SSL</a></li><li class="toctree-l3"><a class="reference internal" href="../../../tutorial/configure-ssl-clients.html">TLS/SSL Configuration for Clients</a></li><li class="toctree-l3"><a class="reference internal" href="../../../tutorial/upgrade-cluster-to-ssl.html">Upgrade a Cluster to Use TLS/SSL</a></li><li class="toctree-l3"><a class="reference internal" href="../../../tutorial/configure-fips.html">Configure MongoDB for FIPS</a></li></ul></li><li class="toctree-l2"><a class="reference internal" href="../../../core/security-encryption-at-rest.html">Encryption at Rest</a><ul><li class="toctree-l3"><a class="reference internal" href="../../../tutorial/configure-encryption.html">Configure Encryption</a></li><li class="toctree-l3"><a class="reference internal" href="../../../tutorial/rotate-encryption-key.html">Rotate Encryption Keys</a></li></ul></li><li class="toctree-l2"><a class="reference internal" href="../../../core/security-client-side-encryption.html">Client-Side Field Level Encryption</a><ul><li class="toctree-l3"><a class="reference internal" href="../../../core/security-automatic-client-side-encryption.html">Automatic Client-Side Field Level Encryption</a><ul><li class="toctree-l4"><a class="reference internal" href="../../security-client-side-automatic-json-schema.html">Automatic Encryption Rules</a></li><li class="toctree-l4"><a class="reference internal" href="../../security-client-side-query-aggregation-support.html">Read/Write Support with Automatic Field Level Encryption</a></li><li class="toctree-l4"><a class="reference internal" href="../../security-client-side-encryption-appendix.html">Appendix</a></li></ul></li><li class="toctree-l3"><a class="reference internal" href="../../../core/security-explicit-client-side-encryption.html">Explicit (Manual) Client-Side Field Level Encryption</a></li><li class="toctree-l3"><a class="reference internal" href="../../../core/security-client-side-encryption-key-management.html">Master Key and Data Encryption Key Management</a><ul><li class="toctree-l4"><a class="reference internal" href="../../../tutorial/manage-client-side-encryption-data-keys.html">Manage Data Encryption Keys</a></li></ul></li><li class="toctree-l3"><a class="reference internal" href="../../security-client-side-encryption-limitations.html">Limitations</a></li></ul></li><li class="toctree-l2"><a class="reference internal" href="../../../core/auditing.html">Auditing</a><ul><li class="toctree-l3"><a class="reference internal" href="../../../tutorial/configure-auditing.html">Configure Auditing</a></li><li class="toctree-l3"><a class="reference internal" href="../../../tutorial/configure-audit-filters.html">Configure Audit Filters</a></li><li class="toctree-l3"><a class="reference internal" href="../../audit-message.html">System Event Audit Messages</a></li></ul></li><li class="toctree-l2"><a class="reference internal" href="../../../core/security-hardening.html">Network and Configuration Hardening</a><ul><li class="toctree-l3"><a class="reference internal" href="../../../core/security-mongodb-configuration.html">IP Binding</a></li><li class="toctree-l3"><a class="reference internal" href="../../../tutorial/configure-linux-iptables-firewall.html">Configure Linux <code class="docutils literal"><span class="pre">iptables</span></code> Firewall for MongoDB</a></li><li class="toctree-l3"><a class="reference internal" href="../../../tutorial/configure-windows-netsh-firewall.html">Configure Windows <code class="docutils literal"><span class="pre">netsh</span></code> Firewall for MongoDB</a></li></ul></li><li class="toctree-l2"><a class="reference internal" href="../../../tutorial/implement-field-level-redaction.html">Implement Field Level Redaction</a></li><li class="toctree-l2"><a class="reference internal" href="../../security.html">Security Reference</a><ul><li class="toctree-l3"><a class="reference internal" href="../../system-roles-collection.html"><code class="docutils literal"><span class="pre">system.roles</span></code> Collection</a></li><li class="toctree-l3"><a class="reference internal" href="../../system-users-collection.html"><code class="docutils literal"><span class="pre">system.users</span></code> Collection</a></li><li class="toctree-l3"><a class="reference internal" href="../../resource-document.html">Resource Document</a></li><li class="toctree-l3"><a class="reference internal" href="../../privilege-actions.html">Privilege Actions</a></li></ul></li><li class="toctree-l2"><a class="reference internal" href="../../../tutorial/create-a-vulnerability-report.html">Create a Vulnerability Report</a></li><li class="toctree-l2"><a class="reference internal" href="../../../appendix/security.html">Appendix</a><ul><li class="toctree-l3"><a class="reference internal" href="../../../appendix/security/appendixA-openssl-ca.html">Appendix A - OpenSSL CA Certificate for Testing</a></li><li class="toctree-l3"><a class="reference internal" href="../../../appendix/security/appendixB-openssl-server.html">Appendix B - OpenSSL Server Certificates for Testing</a></li><li class="toctree-l3"><a class="reference internal" href="../../../appendix/security/appendixC-openssl-client.html">Appendix C - OpenSSL Client Certificates for Testing</a></li></ul></li></ul></li><li class="toctree-l1"><a class="reference internal" href="../../../changeStreams.html">Change Streams</a><ul><li 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Development</a></li><li class="toctree-l3"><a class="reference internal" href="../../../tutorial/deploy-geographically-distributed-replica-set.html">Deploy a Geographically Redundant Replica Set</a></li><li class="toctree-l3"><a class="reference internal" href="../../../tutorial/add-replica-set-arbiter.html">Add an Arbiter to Replica Set</a></li><li class="toctree-l3"><a class="reference internal" href="../../../tutorial/convert-standalone-to-replica-set.html">Convert a Standalone to a Replica Set</a></li><li class="toctree-l3"><a class="reference internal" href="../../../tutorial/expand-replica-set.html">Add Members to a Replica Set</a></li><li class="toctree-l3"><a class="reference internal" href="../../../tutorial/remove-replica-set-member.html">Remove Members from Replica Set</a></li><li class="toctree-l3"><a class="reference internal" href="../../../tutorial/replace-replica-set-member.html">Replace a Replica Set Member</a></li></ul></li><li class="toctree-l2"><a class="reference 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href="../../../tutorial/configure-replica-set-tag-sets.html">Configure Replica Set Tag Sets</a></li><li class="toctree-l3"><a class="reference internal" href="../../../tutorial/reconfigure-replica-set-with-unavailable-members.html">Reconfigure a Replica Set with Unavailable Members</a></li><li class="toctree-l3"><a class="reference internal" href="../../../tutorial/manage-chained-replication.html">Manage Chained Replication</a></li><li class="toctree-l3"><a class="reference internal" href="../../../tutorial/change-hostnames-in-a-replica-set.html">Change Hostnames in a Replica Set</a></li><li class="toctree-l3"><a class="reference internal" href="../../../tutorial/configure-replica-set-secondary-sync-target.html">Configure a Secondary’s Sync Target</a></li></ul></li><li class="toctree-l2"><a class="reference internal" href="../../replication.html">Replication Reference</a><ul><li class="toctree-l3"><a class="reference internal" href="../../replica-configuration.html">Replica Set 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class="reference internal" href="../../../core/sharded-cluster-config-servers.html">Config Servers (metadata)</a></li><li class="toctree-l3"><a class="reference internal" href="../../../core/sharded-cluster-query-router.html">Router (mongos)</a></li></ul></li><li class="toctree-l2"><a class="reference internal" href="../../../core/sharding-shard-key.html">Shard Keys</a></li><li class="toctree-l2"><a class="reference internal" href="../../../core/hashed-sharding.html">Hashed Sharding</a></li><li class="toctree-l2"><a class="reference internal" href="../../../core/ranged-sharding.html">Ranged Sharding</a></li><li class="toctree-l2"><a class="reference internal" href="../../../tutorial/deploy-shard-cluster.html">Deploy a Sharded Cluster</a></li><li class="toctree-l2"><a class="reference internal" href="../../../core/zone-sharding.html">Zones</a><ul><li class="toctree-l3"><a class="reference internal" href="../../../tutorial/manage-shard-zone.html">Manage Shard Zones</a></li><li 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class="reference internal" href="../../../tutorial/split-chunks-in-sharded-cluster.html">Split Chunks in a Sharded Cluster</a></li><li class="toctree-l3"><a class="reference internal" href="../../../tutorial/merge-chunks-in-sharded-cluster.html">Merge Chunks in a Sharded Cluster</a></li><li class="toctree-l3"><a class="reference internal" href="../../../tutorial/modify-chunk-size-in-sharded-cluster.html">Modify Chunk Size in a Sharded Cluster</a></li></ul></li><li class="toctree-l2"><a class="reference internal" href="../../../core/sharding-balancer-administration.html">Balancer</a><ul><li class="toctree-l3"><a class="reference internal" href="../../../tutorial/manage-sharded-cluster-balancer.html">Manage Sharded Cluster Balancer</a></li><li class="toctree-l3"><a class="reference internal" href="../../../tutorial/migrate-chunks-in-sharded-cluster.html">Migrate Chunks in a Sharded Cluster</a></li></ul></li><li class="toctree-l2"><a class="reference internal" href="../../../administration/sharded-cluster-administration.html">Administration</a><ul><li class="toctree-l3"><a class="reference internal" href="../../../administration/sharded-cluster-config-servers.html">Config Server Administration</a><ul><li class="toctree-l4"><a class="reference internal" href="../../../tutorial/replace-config-server.html">Replace a Config Server</a></li></ul></li><li class="toctree-l3"><a class="reference internal" href="../../../tutorial/view-sharded-cluster-configuration.html">View Cluster Configuration</a></li><li class="toctree-l3"><a class="reference internal" href="../../../tutorial/restart-sharded-cluster.html">Restart a Sharded Cluster</a></li><li class="toctree-l3"><a class="reference internal" href="../../../tutorial/migrate-sharded-cluster-to-new-hardware.html">Migrate a Sharded Cluster to Different Hardware</a></li><li class="toctree-l3"><a class="reference internal" href="../../../tutorial/add-shards-to-shard-cluster.html">Add Shards to a Cluster</a></li><li class="toctree-l3"><a class="reference internal" href="../../../tutorial/remove-shards-from-cluster.html">Remove Shards from an Existing Sharded Cluster</a></li><li class="toctree-l3"><a class="reference internal" href="../../../tutorial/clear-jumbo-flag.html">Clear <code class="docutils literal"><span class="pre">jumbo</span></code> Flag</a></li><li class="toctree-l3"><a class="reference internal" href="../../../tutorial/backup-sharded-cluster-metadata.html">Back Up Cluster Metadata</a></li><li class="toctree-l3"><a class="reference internal" href="../../../tutorial/convert-sharded-cluster-to-replica-set.html">Convert Sharded Cluster to Replica Set</a></li><li class="toctree-l3"><a class="reference internal" href="../../../tutorial/convert-replica-set-to-replicated-shard-cluster.html">Convert a Replica Set to a Sharded Cluster</a></li><li class="toctree-l3"><a class="reference internal" 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and Restore Sharded Clusters</a><ul><li class="toctree-l4"><a class="reference internal" href="../../../tutorial/backup-sharded-cluster-with-filesystem-snapshots.html">Back Up a Sharded Cluster with File System Snapshots</a></li><li class="toctree-l4"><a class="reference internal" href="../../../tutorial/backup-sharded-cluster-with-database-dumps.html">Back Up a Sharded Cluster with Database Dumps</a></li><li class="toctree-l4"><a class="reference internal" href="../../../tutorial/schedule-backup-window-for-sharded-clusters.html">Schedule Backup Window for Sharded Clusters</a></li><li class="toctree-l4"><a class="reference internal" href="../../../tutorial/restore-sharded-cluster.html">Restore a Sharded Cluster</a></li></ul></li><li class="toctree-l3"><a class="reference internal" href="../../../tutorial/recover-data-following-unexpected-shutdown.html">Recover a Standalone after an Unexpected Shutdown</a></li></ul></li><li class="toctree-l2"><a class="reference internal" 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class="toctree-l4"><a class="reference internal" href="../../../tutorial/change-standalone-wiredtiger.html">Change Standalone to WiredTiger</a></li><li class="toctree-l4"><a class="reference internal" href="../../../tutorial/change-replica-set-wiredtiger.html">Change Replica Set to WiredTiger</a></li><li class="toctree-l4"><a class="reference internal" href="../../../tutorial/change-sharded-cluster-wiredtiger.html">Change Sharded Cluster to WiredTiger</a></li></ul></li><li class="toctree-l3"><a class="reference internal" href="../../../core/inmemory.html">In-Memory Storage Engine</a></li></ul></li><li class="toctree-l2"><a class="reference internal" href="../../../core/journaling.html">Journaling</a><ul><li class="toctree-l3"><a class="reference internal" href="../../../tutorial/manage-journaling.html">Manage Journaling</a></li></ul></li><li class="toctree-l2"><a class="reference internal" href="../../../core/gridfs.html">GridFS</a></li><li class="toctree-l2"><a class="reference internal" href="../../../faq/storage.html">FAQ: MongoDB Storage</a></li></ul></li><li class="toctree-l1"><a class="reference internal" href="../../../faq.html">Frequently Asked Questions</a><ul><li class="toctree-l2"><a class="reference internal" href="../../../faq/fundamentals.html">FAQ: MongoDB Fundamentals</a></li><li class="toctree-l2"><a class="reference internal" href="../../../faq/indexes.html">FAQ: Indexes</a></li><li class="toctree-l2"><a class="reference internal" href="../../../faq/concurrency.html">FAQ: Concurrency</a></li><li class="toctree-l2"><a class="reference internal" href="../../../faq/sharding.html">FAQ: Sharding with MongoDB</a></li><li class="toctree-l2"><a class="reference internal" href="../../../faq/replica-sets.html">FAQ: Replication and Replica Sets</a></li><li class="toctree-l2"><a class="reference internal" href="../../../faq/storage.html">FAQ: MongoDB Storage</a></li><li class="toctree-l2"><a class="reference internal" href="../../../faq/diagnostics.html">FAQ: MongoDB Diagnostics</a></li></ul></li><li class="toctree-l1 current"><a class="reference internal" href="../../../reference.html">Reference</a><ul class="current"><li class="toctree-l2 current"><a class="reference internal" href="../../operator.html">Operators</a><ul class="current"><li class="toctree-l3"><a class="reference internal" href="../query.html">Query and Projection Operators</a><ul><li class="toctree-l4"><a class="reference internal" href="../query-comparison.html">Comparison Query Operators</a><ul><li class="toctree-l5"><a class="reference internal" href="../query/eq.html">$eq</a></li><li class="toctree-l5"><a class="reference internal" href="../query/gt.html">$gt</a></li><li class="toctree-l5"><a class="reference internal" href="../query/gte.html">$gte</a></li><li class="toctree-l5"><a class="reference internal" href="../query/in.html">$in</a></li><li class="toctree-l5"><a class="reference internal" href="../query/lt.html">$lt</a></li><li class="toctree-l5"><a class="reference internal" href="../query/lte.html">$lte</a></li><li class="toctree-l5"><a class="reference internal" href="../query/ne.html">$ne</a></li><li class="toctree-l5"><a class="reference internal" href="../query/nin.html">$nin</a></li></ul></li><li class="toctree-l4"><a class="reference internal" href="../query-logical.html">Logical Query Operators</a><ul><li class="toctree-l5"><a class="reference internal" href="../query/and.html">$and</a></li><li class="toctree-l5"><a class="reference internal" href="../query/not.html">$not</a></li><li class="toctree-l5"><a class="reference internal" href="../query/nor.html">$nor</a></li><li class="toctree-l5"><a class="reference internal" href="../query/or.html">$or</a></li></ul></li><li class="toctree-l4"><a class="reference internal" href="../query-element.html">Element Query Operators</a><ul><li class="toctree-l5"><a class="reference internal" href="../query/exists.html">$exists</a></li><li class="toctree-l5"><a class="reference internal" href="../query/type.html">$type</a></li></ul></li><li class="toctree-l4"><a class="reference internal" href="../query-evaluation.html">Evaluation Query Operators</a><ul><li class="toctree-l5"><a class="reference internal" href="../query/expr.html">$expr</a></li><li class="toctree-l5"><a class="reference internal" href="../query/jsonSchema.html">$jsonSchema</a></li><li class="toctree-l5"><a class="reference internal" href="../query/mod.html">$mod</a></li><li class="toctree-l5"><a class="reference internal" href="../query/regex.html">$regex</a></li><li class="toctree-l5"><a class="reference internal" href="../query/text.html">$text</a></li><li class="toctree-l5"><a class="reference internal" href="../query/where.html">$where</a></li></ul></li><li class="toctree-l4"><a class="reference internal" href="../query-geospatial.html">Geospatial Query Operators</a><ul><li class="toctree-l5"><a class="reference internal" href="../query/geoIntersects.html">$geoIntersects</a></li><li class="toctree-l5"><a class="reference internal" href="../query/geoWithin.html">$geoWithin</a></li><li class="toctree-l5"><a class="reference internal" href="../query/near.html">$near</a></li><li class="toctree-l5"><a class="reference internal" href="../query/nearSphere.html">$nearSphere</a></li><li class="toctree-l5"><a class="reference internal" href="../query/box.html">$box</a></li><li class="toctree-l5"><a class="reference internal" href="../query/center.html">$center</a></li><li class="toctree-l5"><a class="reference internal" href="../query/centerSphere.html">$centerSphere</a></li><li class="toctree-l5"><a class="reference internal" href="../query/geometry.html">$geometry</a></li><li class="toctree-l5"><a class="reference internal" href="../query/maxDistance.html">$maxDistance</a></li><li class="toctree-l5"><a class="reference internal" href="../query/minDistance.html">$minDistance</a></li><li class="toctree-l5"><a class="reference internal" href="../query/polygon.html">$polygon</a></li><li class="toctree-l5"><a class="reference internal" href="../query/uniqueDocs.html">$uniqueDocs</a></li></ul></li><li class="toctree-l4"><a class="reference internal" href="../query-array.html">Array Query Operators</a><ul><li class="toctree-l5"><a class="reference internal" href="../query/all.html">$all</a></li><li class="toctree-l5"><a class="reference internal" href="../query/elemMatch.html">$elemMatch (query)</a></li><li class="toctree-l5"><a class="reference internal" href="../query/size.html">$size</a></li></ul></li><li class="toctree-l4"><a class="reference internal" href="../query-bitwise.html">Bitwise Query Operators</a><ul><li class="toctree-l5"><a class="reference internal" href="../query/bitsAllClear.html">$bitsAllClear</a></li><li class="toctree-l5"><a class="reference internal" href="../query/bitsAllSet.html">$bitsAllSet</a></li><li class="toctree-l5"><a class="reference internal" href="../query/bitsAnyClear.html">$bitsAnyClear</a></li><li class="toctree-l5"><a class="reference internal" href="../query/bitsAnySet.html">$bitsAnySet</a></li></ul></li><li class="toctree-l4"><a class="reference internal" href="../query/comment.html">$comment</a></li><li class="toctree-l4"><a class="reference internal" href="../projection.html">Projection Operators</a><ul><li class="toctree-l5"><a class="reference internal" href="../projection/positional.html">$ (projection)</a></li><li class="toctree-l5"><a class="reference internal" href="../projection/elemMatch.html">$elemMatch (projection)</a></li><li class="toctree-l5"><a class="reference internal" href="../projection/meta.html">$meta</a></li><li class="toctree-l5"><a class="reference internal" href="../projection/slice.html">$slice (projection)</a></li></ul></li></ul></li><li class="toctree-l3"><a class="reference internal" href="../update.html">Update Operators</a><ul><li class="toctree-l4"><a class="reference internal" href="../update-field.html">Field Update Operators</a><ul><li class="toctree-l5"><a class="reference internal" href="../update/currentDate.html">$currentDate</a></li><li class="toctree-l5"><a class="reference internal" href="../update/inc.html">$inc</a></li><li class="toctree-l5"><a class="reference internal" href="../update/min.html">$min</a></li><li class="toctree-l5"><a class="reference internal" href="../update/max.html">$max</a></li><li class="toctree-l5"><a class="reference internal" href="../update/mul.html">$mul</a></li><li class="toctree-l5"><a class="reference internal" href="../update/rename.html">$rename</a></li><li class="toctree-l5"><a class="reference internal" href="../update/set.html">$set</a></li><li class="toctree-l5"><a class="reference internal" href="../update/setOnInsert.html">$setOnInsert</a></li><li class="toctree-l5"><a class="reference internal" href="../update/unset.html">$unset</a></li></ul></li><li class="toctree-l4"><a class="reference internal" href="../update-array.html">Array Update Operators</a><ul><li class="toctree-l5"><a class="reference internal" href="../update/positional.html">$ (update)</a></li><li class="toctree-l5"><a class="reference internal" href="../update/positional-all.html">$[]</a></li><li class="toctree-l5"><a class="reference internal" href="../update/positional-filtered.html">$[&lt;identifier&gt;]</a></li><li class="toctree-l5"><a class="reference internal" href="../update/addToSet.html">$addToSet</a></li><li class="toctree-l5"><a class="reference internal" href="../update/pop.html">$pop</a></li><li class="toctree-l5"><a class="reference internal" href="../update/pull.html">$pull</a></li><li class="toctree-l5"><a class="reference internal" href="../update/push.html">$push</a></li><li class="toctree-l5"><a class="reference internal" href="../update/pullAll.html">$pullAll</a></li><li class="toctree-l5"><a class="reference internal" href="../update/each.html">$each</a></li><li class="toctree-l5"><a class="reference internal" href="../update/position.html">$position</a></li><li class="toctree-l5"><a class="reference internal" href="../update/slice.html">$slice</a></li><li class="toctree-l5"><a class="reference internal" href="../update/sort.html">$sort</a></li></ul></li><li class="toctree-l4"><a class="reference internal" href="../update-bitwise.html">Bitwise Update Operator</a><ul><li class="toctree-l5"><a class="reference internal" href="../update/bit.html">$bit</a></li></ul></li></ul></li><li class="toctree-l3"><a class="reference internal" href="../aggregation-pipeline.html">Aggregation Pipeline Stages</a><ul><li class="toctree-l4"><a class="reference internal" href="addFields.html">$addFields (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="bucket.html">$bucket (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="bucketAuto.html">$bucketAuto (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="collStats.html">$collStats (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="count.html">$count (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="currentOp.html">$currentOp (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="facet.html">$facet (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="geoNear.html">$geoNear (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="graphLookup.html">$graphLookup (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="group.html">$group (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="indexStats.html">$indexStats (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="limit.html">$limit (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="listLocalSessions.html">$listLocalSessions</a></li><li class="toctree-l4"><a class="reference internal" href="listSessions.html">$listSessions</a></li><li class="toctree-l4"><a class="reference internal" href="lookup.html">$lookup (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="match.html">$match (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="merge.html">$merge (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="out.html">$out (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="planCacheStats.html">$planCacheStats</a></li><li class="toctree-l4"><a class="reference internal" href="project.html">$project (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="redact.html">$redact (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="replaceRoot.html">$replaceRoot (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="replaceWith.html">$replaceWith (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="sample.html">$sample (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="set.html">$set (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="skip.html">$skip (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="sort.html">$sort (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="sortByCount.html">$sortByCount (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="unset.html">$unset (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="unwind.html">$unwind (aggregation)</a></li></ul></li><li class="toctree-l3 current"><a class="reference internal" href="../aggregation.html">Aggregation Pipeline Operators</a><ul class="current"><li class="toctree-l4 current"><a class="reference internal current" href="">$abs (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="acos.html">$acos (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="acosh.html">$acosh (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="add.html">$add (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="addToSet.html">$addToSet (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="allElementsTrue.html">$allElementsTrue (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="and.html">$and (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="anyElementTrue.html">$anyElementTrue (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="arrayElemAt.html">$arrayElemAt (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="arrayToObject.html">$arrayToObject (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="asin.html">$asin (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="asinh.html">$asinh (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="atan.html">$atan (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="atan2.html">$atan2 (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="atanh.html">$atanh (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="avg.html">$avg (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="ceil.html">$ceil (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="cmp.html">$cmp (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="concat.html">$concat (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="concatArrays.html">$concatArrays (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="cond.html">$cond (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="convert.html">$convert (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="cos.html">$cos (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="dateFromParts.html">$dateFromParts (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="dateToParts.html">$dateToParts (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="dateFromString.html">$dateFromString (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="dateToString.html">$dateToString (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="dayOfMonth.html">$dayOfMonth (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="dayOfWeek.html">$dayOfWeek (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="dayOfYear.html">$dayOfYear (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="degreesToRadians.html">$degreesToRadians (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="divide.html">$divide (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="eq.html">$eq (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="exp.html">$exp (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="filter.html">$filter (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="first.html">$first (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="floor.html">$floor (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="gt.html">$gt (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="gte.html">$gte (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="hour.html">$hour (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="ifNull.html">$ifNull (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="in.html">$in (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="indexOfArray.html">$indexOfArray (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="indexOfBytes.html">$indexOfBytes (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="indexOfCP.html">$indexOfCP (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="isArray.html">$isArray (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="isoDayOfWeek.html">$isoDayOfWeek (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="isoWeek.html">$isoWeek (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="isoWeekYear.html">$isoWeekYear (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="last.html">$last (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="let.html">$let (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="literal.html">$literal (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="ln.html">$ln (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="log.html">$log (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="log10.html">$log10 (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="lt.html">$lt (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="lte.html">$lte (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="ltrim.html">$ltrim (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="map.html">$map (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="max.html">$max (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="mergeObjects.html">$mergeObjects (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="meta.html">$meta (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="min.html">$min (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="millisecond.html">$millisecond (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="minute.html">$minute (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="mod.html">$mod (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="month.html">$month (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="multiply.html">$multiply (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="ne.html">$ne (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="not.html">$not (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="objectToArray.html">$objectToArray (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="or.html">$or (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="pow.html">$pow (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="push.html">$push (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="radiansToDegrees.html">$radiansToDegrees (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="range.html">$range (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="reduce.html">$reduce (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="regexFind.html">$regexFind (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="regexFindAll.html">$regexFindAll (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="regexMatch.html">$regexMatch (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="reverseArray.html">$reverseArray (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="round.html">$round (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="rtrim.html">$rtrim (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="second.html">$second (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="setDifference.html">$setDifference (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="setEquals.html">$setEquals (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="setIntersection.html">$setIntersection (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="setIsSubset.html">$setIsSubset (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="setUnion.html">$setUnion (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="size.html">$size (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="sin.html">$sin (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="slice.html">$slice (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="split.html">$split (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="sqrt.html">$sqrt (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="stdDevPop.html">$stdDevPop (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="stdDevSamp.html">$stdDevSamp (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="strcasecmp.html">$strcasecmp (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="strLenBytes.html">$strLenBytes (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="strLenCP.html">$strLenCP (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="substr.html">$substr (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="substrBytes.html">$substrBytes (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="substrCP.html">$substrCP (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="subtract.html">$subtract (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="sum.html">$sum (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="switch.html">$switch (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="tan.html">$tan (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="toBool.html">$toBool (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="toDate.html">$toDate (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="toDecimal.html">$toDecimal (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="toDouble.html">$toDouble(aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="toInt.html">$toInt (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="toLong.html">$toLong (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="toObjectId.html">$toObjectId (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="toString.html">$toString (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="toLower.html">$toLower (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="toUpper.html">$toUpper (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="trim.html">$trim (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="trunc.html">$trunc (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="type.html">$type (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="week.html">$week (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="year.html">$year (aggregation)</a></li><li class="toctree-l4"><a class="reference internal" href="zip.html">$zip (aggregation)</a></li></ul></li><li class="toctree-l3"><a class="reference internal" href="../query-modifier.html">Query Modifiers</a><ul><li class="toctree-l4"><a class="reference internal" href="../meta/comment.html">$comment</a></li><li class="toctree-l4"><a class="reference internal" href="../meta/explain.html">$explain</a></li><li class="toctree-l4"><a class="reference internal" href="../meta/hint.html">$hint</a></li><li class="toctree-l4"><a class="reference internal" href="../meta/max.html">$max</a></li><li class="toctree-l4"><a class="reference internal" href="../meta/maxTimeMS.html">$maxTimeMS</a></li><li class="toctree-l4"><a class="reference internal" href="../meta/min.html">$min</a></li><li class="toctree-l4"><a class="reference internal" href="../meta/orderby.html">$orderby</a></li><li class="toctree-l4"><a class="reference internal" href="../meta/query.html">$query</a></li><li class="toctree-l4"><a class="reference internal" href="../meta/returnKey.html">$returnKey</a></li><li class="toctree-l4"><a class="reference internal" href="../meta/showDiskLoc.html">$showDiskLoc</a></li><li class="toctree-l4"><a class="reference internal" href="../meta/natural.html">$natural</a></li></ul></li></ul></li><li class="toctree-l2"><a class="reference internal" href="../../command.html">Database Commands</a><ul><li class="toctree-l3"><a class="reference internal" href="../../command/nav-aggregation.html">Aggregation Commands</a><ul><li class="toctree-l4"><a class="reference internal" href="../../command/aggregate.html">aggregate</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/count.html">count</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/distinct.html">distinct</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/mapReduce.html">mapReduce</a></li></ul></li><li class="toctree-l3"><a class="reference internal" href="../../command/nav-geospatial.html">Geospatial Commands</a><ul><li class="toctree-l4"><a class="reference internal" href="../../command/geoSearch.html">geoSearch</a></li></ul></li><li class="toctree-l3"><a class="reference internal" href="../../command/nav-crud.html">Query and Write Operation Commands</a><ul><li class="toctree-l4"><a class="reference internal" href="../../command/delete.html">delete</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/find.html">find</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/findAndModify.html">findAndModify</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/getLastError.html">getLastError</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/getMore.html">getMore</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/insert.html">insert</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/resetError.html">resetError</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/update.html">update</a></li></ul></li><li class="toctree-l3"><a class="reference internal" href="../../command/nav-plan-cache.html">Query Plan Cache Commands</a><ul><li class="toctree-l4"><a class="reference internal" href="../../command/planCacheClear.html">planCacheClear</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/planCacheClearFilters.html">planCacheClearFilters</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/planCacheListFilters.html">planCacheListFilters</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/planCacheListPlans.html">planCacheListPlans</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/planCacheListQueryShapes.html">planCacheListQueryShapes</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/planCacheSetFilter.html">planCacheSetFilter</a></li></ul></li><li class="toctree-l3"><a class="reference internal" href="../../command/nav-authentication.html">Authentication Commands</a><ul><li class="toctree-l4"><a class="reference internal" href="../../command/authenticate.html">authenticate</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/getnonce.html">getnonce</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/logout.html">logout</a></li></ul></li><li class="toctree-l3"><a class="reference internal" href="../../command/nav-user-management.html">User Management Commands</a><ul><li class="toctree-l4"><a class="reference internal" href="../../command/createUser.html">createUser</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/dropAllUsersFromDatabase.html">dropAllUsersFromDatabase</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/dropUser.html">dropUser</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/grantRolesToUser.html">grantRolesToUser</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/revokeRolesFromUser.html">revokeRolesFromUser</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/updateUser.html">updateUser</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/usersInfo.html">usersInfo</a></li></ul></li><li class="toctree-l3"><a class="reference internal" href="../../command/nav-role-management.html">Role Management Commands</a><ul><li class="toctree-l4"><a class="reference internal" href="../../command/createRole.html">createRole</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/dropRole.html">dropRole</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/dropAllRolesFromDatabase.html">dropAllRolesFromDatabase</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/grantPrivilegesToRole.html">grantPrivilegesToRole</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/grantRolesToRole.html">grantRolesToRole</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/invalidateUserCache.html">invalidateUserCache</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/revokePrivilegesFromRole.html">revokePrivilegesFromRole</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/revokeRolesFromRole.html">revokeRolesFromRole</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/rolesInfo.html">rolesInfo</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/updateRole.html">updateRole</a></li></ul></li><li class="toctree-l3"><a class="reference internal" href="../../command/nav-replication.html">Replication Commands</a><ul><li class="toctree-l4"><a class="reference internal" href="../../command/applyOps.html">applyOps</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/isMaster.html">isMaster</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/replSetAbortPrimaryCatchUp.html">replSetAbortPrimaryCatchUp</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/replSetFreeze.html">replSetFreeze</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/replSetGetConfig.html">replSetGetConfig</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/replSetGetStatus.html">replSetGetStatus</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/replSetInitiate.html">replSetInitiate</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/replSetMaintenance.html">replSetMaintenance</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/replSetReconfig.html">replSetReconfig</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/replSetResizeOplog.html">replSetResizeOplog</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/replSetStepDown.html">replSetStepDown</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/replSetSyncFrom.html">replSetSyncFrom</a></li></ul></li><li class="toctree-l3"><a class="reference internal" href="../../command/nav-sharding.html">Sharding Commands</a><ul><li class="toctree-l4"><a class="reference internal" href="../../command/addShard.html">addShard</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/addShardToZone.html">addShardToZone</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/balancerStart.html">balancerStart</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/balancerStatus.html">balancerStatus</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/balancerStop.html">balancerStop</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/checkShardingIndex.html">checkShardingIndex</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/clearJumboFlag.html">clearJumboFlag</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/cleanupOrphaned.html">cleanupOrphaned</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/enableSharding.html">enableSharding</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/flushRouterConfig.html">flushRouterConfig</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/getShardMap.html">getShardMap</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/getShardVersion.html">getShardVersion</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/isdbgrid.html">isdbgrid</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/listShards.html">listShards</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/medianKey.html">medianKey</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/moveChunk.html">moveChunk</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/movePrimary.html">movePrimary</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/mergeChunks.html">mergeChunks</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/removeShard.html">removeShard</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/removeShardFromZone.html">removeShardFromZone</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/setShardVersion.html">setShardVersion</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/shardCollection.html">shardCollection</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/shardingState.html">shardingState</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/split.html">split</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/splitChunk.html">splitChunk</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/splitVector.html">splitVector</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/unsetSharding.html">unsetSharding</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/updateZoneKeyRange.html">updateZoneKeyRange</a></li></ul></li><li class="toctree-l3"><a class="reference internal" href="../../command/nav-sessions.html">Sessions Commands</a><ul><li class="toctree-l4"><a class="reference internal" href="../../command/abortTransaction.html">abortTransaction</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/commitTransaction.html">commitTransaction</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/endSessions.html">endSessions</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/killAllSessions.html">killAllSessions</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/killAllSessionsByPattern.html">killAllSessionsByPattern</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/killSessions.html">killSessions</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/refreshSessions.html">refreshSessions</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/startSession.html">startSession</a></li></ul></li><li class="toctree-l3"><a class="reference internal" href="../../command/nav-administration.html">Administration Commands</a><ul><li class="toctree-l4"><a class="reference internal" href="../../command/clean.html">clean</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/cloneCollection.html">cloneCollection</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/cloneCollectionAsCapped.html">cloneCollectionAsCapped</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/collMod.html">collMod</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/compact.html">compact</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/connPoolSync.html">connPoolSync</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/convertToCapped.html">convertToCapped</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/create.html">create</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/createIndexes.html">createIndexes</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/currentOp.html">currentOp</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/drop.html">drop</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/dropDatabase.html">dropDatabase</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/dropConnections.html">dropConnections</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/dropIndexes.html">dropIndexes</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/filemd5.html">filemd5</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/fsync.html">fsync</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/fsyncUnlock.html">fsyncUnlock</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/getParameter.html">getParameter</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/killCursors.html">killCursors</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/killOp.html">killOp</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/listCollections.html">listCollections</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/listDatabases.html">listDatabases</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/listIndexes.html">listIndexes</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/logRotate.html">logRotate</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/reIndex.html">reIndex</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/renameCollection.html">renameCollection</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/setFeatureCompatibilityVersion.html">setFeatureCompatibilityVersion</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/setParameter.html">setParameter</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/shutdown.html">shutdown</a></li></ul></li><li class="toctree-l3"><a class="reference internal" href="../../command/nav-diagnostic.html">Diagnostic Commands</a><ul><li class="toctree-l4"><a class="reference internal" href="../../command/availableQueryOptions.html">availableQueryOptions</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/buildInfo.html">buildInfo</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/collStats.html">collStats</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/connPoolStats.html">connPoolStats</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/connectionStatus.html">connectionStatus</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/cursorInfo.html">cursorInfo</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/dataSize.html">dataSize</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/dbHash.html">dbHash</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/dbStats.html">dbStats</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/diagLogging.html">diagLogging</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/driverOIDTest.html">driverOIDTest</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/explain.html">explain</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/features.html">features</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/getCmdLineOpts.html">getCmdLineOpts</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/getLog.html">getLog</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/hostInfo.html">hostInfo</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/isSelf.html">isSelf</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/listCommands.html">listCommands</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/netstat.html">netstat</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/ping.html">ping</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/profile.html">profile</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/serverStatus.html">serverStatus</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/shardConnPoolStats.html">shardConnPoolStats</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/top.html">top</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/validate.html">validate</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/whatsmyuri.html">whatsmyuri</a></li></ul></li><li class="toctree-l3"><a class="reference internal" href="../../command/nav-free-monitoring.html">Free Monitoring Commands</a><ul><li class="toctree-l4"><a class="reference internal" href="../../command/getFreeMonitoringStatus.html">getFreeMonitoringStatus</a></li><li class="toctree-l4"><a class="reference internal" href="../../command/setFreeMonitoring.html">setFreeMonitoring</a></li></ul></li><li class="toctree-l3"><a class="reference internal" href="../../command/nav-auditing.html">System Events Auditing Commands</a><ul><li class="toctree-l4"><a class="reference internal" href="../../command/logApplicationMessage.html">logApplicationMessage</a></li></ul></li></ul></li><li class="toctree-l2"><a class="reference internal" href="../../method.html"><code class="docutils literal"><span class="pre">mongo</span></code> Shell Methods</a><ul><li class="toctree-l3"><a class="reference internal" href="../../method/js-collection.html">Collection Methods</a><ul><li class="toctree-l4"><a class="reference internal" href="../../method/db.collection.aggregate.html">db.collection.aggregate()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.collection.bulkWrite.html">db.collection.bulkWrite()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.collection.copyTo.html">db.collection.copyTo()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.collection.count.html">db.collection.count()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.collection.countDocuments.html">db.collection.countDocuments()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.collection.estimatedDocumentCount.html">db.collection.estimatedDocumentCount()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.collection.createIndex.html">db.collection.createIndex()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.collection.createIndexes.html">db.collection.createIndexes()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.collection.dataSize.html">db.collection.dataSize()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.collection.deleteOne.html">db.collection.deleteOne()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.collection.deleteMany.html">db.collection.deleteMany()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.collection.distinct.html">db.collection.distinct()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.collection.drop.html">db.collection.drop()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.collection.dropIndex.html">db.collection.dropIndex()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.collection.dropIndexes.html">db.collection.dropIndexes()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.collection.ensureIndex.html">db.collection.ensureIndex()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.collection.explain.html">db.collection.explain()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.collection.find.html">db.collection.find()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.collection.findAndModify.html">db.collection.findAndModify()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.collection.findOne.html">db.collection.findOne()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.collection.findOneAndDelete.html">db.collection.findOneAndDelete()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.collection.findOneAndReplace.html">db.collection.findOneAndReplace()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.collection.findOneAndUpdate.html">db.collection.findOneAndUpdate()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.collection.getIndexes.html">db.collection.getIndexes()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.collection.getShardDistribution.html">db.collection.getShardDistribution()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.collection.getShardVersion.html">db.collection.getShardVersion()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.collection.insert.html">db.collection.insert()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.collection.insertOne.html">db.collection.insertOne()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.collection.insertMany.html">db.collection.insertMany()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.collection.isCapped.html">db.collection.isCapped()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.collection.latencyStats.html">db.collection.latencyStats()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.collection.mapReduce.html">db.collection.mapReduce()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.collection.reIndex.html">db.collection.reIndex()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.collection.remove.html">db.collection.remove()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.collection.renameCollection.html">db.collection.renameCollection()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.collection.replaceOne.html">db.collection.replaceOne()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.collection.save.html">db.collection.save()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.collection.stats.html">db.collection.stats()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.collection.storageSize.html">db.collection.storageSize()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.collection.totalIndexSize.html">db.collection.totalIndexSize()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.collection.totalSize.html">db.collection.totalSize()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.collection.update.html">db.collection.update()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.collection.updateOne.html">db.collection.updateOne()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.collection.updateMany.html">db.collection.updateMany()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.collection.watch.html">db.collection.watch()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.collection.validate.html">db.collection.validate()</a></li></ul></li><li class="toctree-l3"><a class="reference internal" href="../../method/js-cursor.html">Cursor Methods</a><ul><li class="toctree-l4"><a class="reference internal" href="../../method/cursor.addOption.html">cursor.addOption()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/cursor.allowPartialResults.html">cursor.allowPartialResults()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/cursor.batchSize.html">cursor.batchSize()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/cursor.close.html">cursor.close()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/cursor.isClosed.html">cursor.isClosed()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/cursor.collation.html">cursor.collation()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/cursor.comment.html">cursor.comment()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/cursor.count.html">cursor.count()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/cursor.explain.html">cursor.explain()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/cursor.forEach.html">cursor.forEach()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/cursor.hasNext.html">cursor.hasNext()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/cursor.hint.html">cursor.hint()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/cursor.isExhausted.html">cursor.isExhausted()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/cursor.itcount.html">cursor.itcount()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/cursor.limit.html">cursor.limit()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/cursor.map.html">cursor.map()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/cursor.max.html">cursor.max()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/cursor.maxTimeMS.html">cursor.maxTimeMS()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/cursor.min.html">cursor.min()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/cursor.next.html">cursor.next()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/cursor.noCursorTimeout.html">cursor.noCursorTimeout()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/cursor.objsLeftInBatch.html">cursor.objsLeftInBatch()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/cursor.pretty.html">cursor.pretty()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/cursor.readConcern.html">cursor.readConcern()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/cursor.readPref.html">cursor.readPref()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/cursor.returnKey.html">cursor.returnKey()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/cursor.showRecordId.html">cursor.showRecordId()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/cursor.size.html">cursor.size()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/cursor.skip.html">cursor.skip()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/cursor.sort.html">cursor.sort()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/cursor.tailable.html">cursor.tailable()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/cursor.toArray.html">cursor.toArray()</a></li></ul></li><li class="toctree-l3"><a class="reference internal" href="../../method/js-database.html">Database Methods</a><ul><li class="toctree-l4"><a class="reference internal" href="../../method/db.adminCommand.html">db.adminCommand()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.aggregate.html">db.aggregate()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.cloneCollection.html">db.cloneCollection()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.cloneDatabase.html">db.cloneDatabase()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.commandHelp.html">db.commandHelp()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.copyDatabase.html">db.copyDatabase()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.createCollection.html">db.createCollection()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.createView.html">db.createView()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.currentOp.html">db.currentOp()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.dropDatabase.html">db.dropDatabase()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.eval.html">db.eval()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.fsyncLock.html">db.fsyncLock()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.fsyncUnlock.html">db.fsyncUnlock()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.getCollection.html">db.getCollection()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.getCollectionInfos.html">db.getCollectionInfos()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.getCollectionNames.html">db.getCollectionNames()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.getLastError.html">db.getLastError()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.getLastErrorObj.html">db.getLastErrorObj()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.getLogComponents.html">db.getLogComponents()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.getMongo.html">db.getMongo()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.getName.html">db.getName()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.getProfilingLevel.html">db.getProfilingLevel()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.getProfilingStatus.html">db.getProfilingStatus()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.getReplicationInfo.html">db.getReplicationInfo()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.getSiblingDB.html">db.getSiblingDB()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.help.html">db.help()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.hostInfo.html">db.hostInfo()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.isMaster.html">db.isMaster()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.killOp.html">db.killOp()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.listCommands.html">db.listCommands()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.logout.html">db.logout()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.printCollectionStats.html">db.printCollectionStats()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.printReplicationInfo.html">db.printReplicationInfo()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.printShardingStatus.html">db.printShardingStatus()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.printSlaveReplicationInfo.html">db.printSlaveReplicationInfo()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.resetError.html">db.resetError()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.runCommand.html">db.runCommand()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.serverBuildInfo.html">db.serverBuildInfo()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.serverCmdLineOpts.html">db.serverCmdLineOpts()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.serverStatus.html">db.serverStatus()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.setLogLevel.html">db.setLogLevel()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.setProfilingLevel.html">db.setProfilingLevel()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.shutdownServer.html">db.shutdownServer()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.stats.html">db.stats()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.version.html">db.version()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.watch.html">db.watch()</a></li></ul></li><li class="toctree-l3"><a class="reference internal" href="../../method/js-plan-cache.html">Query Plan Cache Methods</a><ul><li class="toctree-l4"><a class="reference internal" href="../../method/db.collection.getPlanCache.html">db.collection.getPlanCache()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/PlanCache.clear.html">PlanCache.clear()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/PlanCache.clearPlansByQuery.html">PlanCache.clearPlansByQuery()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/PlanCache.getPlansByQuery.html">PlanCache.getPlansByQuery()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/PlanCache.help.html">PlanCache.help()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/PlanCache.listQueryShapes.html">PlanCache.listQueryShapes()</a></li></ul></li><li class="toctree-l3"><a class="reference internal" href="../../method/js-bulk.html">Bulk Operation Methods</a><ul><li class="toctree-l4"><a class="reference internal" href="../../method/db.collection.initializeOrderedBulkOp.html">db.collection.initializeOrderedBulkOp()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.collection.initializeUnorderedBulkOp.html">db.collection.initializeUnorderedBulkOp()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/Bulk.html">Bulk()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/Bulk.execute.html">Bulk.execute()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/Bulk.find.html">Bulk.find()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/Bulk.find.arrayFilters.html">Bulk.find.arrayFilters()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/Bulk.find.collation.html">Bulk.find.collation()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/Bulk.find.hint.html">Bulk.find.hint()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/Bulk.find.remove.html">Bulk.find.remove()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/Bulk.find.removeOne.html">Bulk.find.removeOne()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/Bulk.find.replaceOne.html">Bulk.find.replaceOne()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/Bulk.find.updateOne.html">Bulk.find.updateOne()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/Bulk.find.update.html">Bulk.find.update()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/Bulk.find.upsert.html">Bulk.find.upsert()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/Bulk.getOperations.html">Bulk.getOperations()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/Bulk.insert.html">Bulk.insert()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/Bulk.tojson.html">Bulk.tojson()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/Bulk.toString.html">Bulk.toString()</a></li></ul></li><li class="toctree-l3"><a class="reference internal" href="../../method/js-user-management.html">User Management Methods</a><ul><li class="toctree-l4"><a class="reference internal" href="../../method/db.auth.html">db.auth()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.changeUserPassword.html">db.changeUserPassword()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.createUser.html">db.createUser()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.dropUser.html">db.dropUser()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.dropAllUsers.html">db.dropAllUsers()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.getUser.html">db.getUser()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.getUsers.html">db.getUsers()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.grantRolesToUser.html">db.grantRolesToUser()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.removeUser.html">db.removeUser()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.revokeRolesFromUser.html">db.revokeRolesFromUser()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.updateUser.html">db.updateUser()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/passwordPrompt.html">passwordPrompt()</a></li></ul></li><li class="toctree-l3"><a class="reference internal" href="../../method/js-role-management.html">Role Management Methods</a><ul><li class="toctree-l4"><a class="reference internal" href="../../method/db.createRole.html">db.createRole()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.dropRole.html">db.dropRole()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.dropAllRoles.html">db.dropAllRoles()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.getRole.html">db.getRole()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.getRoles.html">db.getRoles()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.grantPrivilegesToRole.html">db.grantPrivilegesToRole()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.revokePrivilegesFromRole.html">db.revokePrivilegesFromRole()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.grantRolesToRole.html">db.grantRolesToRole()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.revokeRolesFromRole.html">db.revokeRolesFromRole()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/db.updateRole.html">db.updateRole()</a></li></ul></li><li class="toctree-l3"><a class="reference internal" href="../../method/js-replication.html">Replication Methods</a><ul><li class="toctree-l4"><a class="reference internal" href="../../method/rs.add.html">rs.add()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/rs.addArb.html">rs.addArb()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/rs.conf.html">rs.conf()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/rs.freeze.html">rs.freeze()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/rs.help.html">rs.help()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/rs.initiate.html">rs.initiate()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/rs.printReplicationInfo.html">rs.printReplicationInfo()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/rs.printSlaveReplicationInfo.html">rs.printSlaveReplicationInfo()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/rs.reconfig.html">rs.reconfig()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/rs.remove.html">rs.remove()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/rs.slaveOk.html">rs.slaveOk()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/rs.status.html">rs.status()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/rs.stepDown.html">rs.stepDown()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/rs.syncFrom.html">rs.syncFrom()</a></li></ul></li><li class="toctree-l3"><a class="reference internal" href="../../method/js-sharding.html">Sharding Methods</a><ul><li class="toctree-l4"><a class="reference internal" href="../../method/sh.addShard.html">sh.addShard()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/sh.addShardTag.html">sh.addShardTag()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/sh.addShardToZone.html">sh.addShardToZone()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/sh.addTagRange.html">sh.addTagRange()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/sh.disableBalancing.html">sh.disableBalancing()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/sh.enableBalancing.html">sh.enableBalancing()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/sh.disableAutoSplit.html">sh.disableAutoSplit</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/sh.enableAutoSplit.html">sh.enableAutoSplit</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/sh.enableSharding.html">sh.enableSharding()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/sh.getBalancerHost.html">sh.getBalancerHost()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/sh.getBalancerState.html">sh.getBalancerState()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/sh.removeTagRange.html">sh.removeTagRange()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/sh.removeRangeFromZone.html">sh.removeRangeFromZone()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/sh.help.html">sh.help()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/sh.isBalancerRunning.html">sh.isBalancerRunning()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/sh.moveChunk.html">sh.moveChunk()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/sh.removeShardTag.html">sh.removeShardTag()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/sh.removeShardFromZone.html">sh.removeShardFromZone()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/sh.setBalancerState.html">sh.setBalancerState()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/sh.shardCollection.html">sh.shardCollection()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/sh.splitAt.html">sh.splitAt()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/sh.splitFind.html">sh.splitFind()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/sh.startBalancer.html">sh.startBalancer()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/sh.status.html">sh.status()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/sh.stopBalancer.html">sh.stopBalancer()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/sh.waitForBalancer.html">sh.waitForBalancer()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/sh.waitForBalancerOff.html">sh.waitForBalancerOff()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/sh.waitForPingChange.html">sh.waitForPingChange()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/sh.updateZoneKeyRange.html">sh.updateZoneKeyRange()</a></li><li class="toctree-l4"><a class="reference internal" href="../../method/convertShardKeyToHashed.html">convertShardKeyToHashed</a></li></ul></li><li class="toctree-l3"><a class="reference internal" href="../../method/js-free-monitoring.html">Free Monitoring Methods</a><ul><li class="toctree-l4"><a class="reference internal" href="../../method/db.disableFreeMonitoring.html">db.disableFreeMonitoring()</a></li><li 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<ul class="simple">
<li><a class="reference internal" href="#definition" id="id1">Definition</a></li>
<li><a class="reference internal" href="#behavior" id="id2">Behavior</a></li>
<li><a class="reference internal" href="#example" id="id3">Example</a></li>
</ul>
</div>
<div class="section" id="definition">
<h2>Definition<a class="headerlink" href="#definition" title="Permalink to this headline">¶</a></h2>
<dl class="expression">
<dt id="exp._S_abs">
<code class="descname">$abs</code><a class="headerlink" href="#exp._S_abs" title="Permalink to this definition">¶</a></dt>
<dd><div class="versionadded">
<p><span class="versionmodified">New in version 3.2.</span></p>
</div>
<p>Returns the absolute value of a number.</p>
<p><a class="reference internal" href="#exp._S_abs" title="$abs"><code class="xref mongodb mongodb-expression docutils literal"><span class="pre">$abs</span></code></a> has the following syntax:</p>
<div class="button-code-block">
<div class="button-row">
<a class="code-button--copy code-button" role="button">
copy</a>
</div>
<div class="copyable-code-block highlight-javascript"><div class="highlight"><pre><span></span><span class="p">{</span> <span class="nx">$abs</span><span class="o">:</span> <span class="o">&lt;</span><span class="nx">number</span><span class="o">&gt;</span> <span class="p">}</span>
</pre></div>
</div>
</div>
<p>The <code class="docutils literal"><span class="pre">&lt;number&gt;</span></code> expression can be any valid <a class="reference internal" href="../../../meta/aggregation-quick-reference.html#aggregation-expressions"><span class="std std-ref">expression</span></a> as long as it resolves to a number. For
more information on expressions, see <a class="reference internal" href="../../../meta/aggregation-quick-reference.html#aggregation-expressions"><span class="std std-ref">Expressions</span></a>.</p>
</dd></dl>

</div>
<div class="section" id="behavior">
<h2>Behavior<a class="headerlink" href="#behavior" title="Permalink to this headline">¶</a></h2>
<p>If the argument resolves to a value of <code class="docutils literal"><span class="pre">null</span></code> or refers to a field that is
missing, <code class="docutils literal"><span class="pre">$abs</span></code> returns <code class="docutils literal"><span class="pre">null</span></code>. If the argument resolves to
<code class="docutils literal"><span class="pre">NaN</span></code>, <code class="docutils literal"><span class="pre">$abs</span></code> returns <code class="docutils literal"><span class="pre">NaN</span></code>.</p>
<table border="1" class="colwidths-given docutils">
<colgroup>
<col width="85%" />
<col width="15%" />
</colgroup>
<thead valign="bottom">
<tr class="row-odd"><th class="head">Example</th>
<th class="head">Results</th>
</tr>
</thead>
<tbody valign="top">
<tr class="row-even"><td><code class="docutils literal"><span class="pre">{</span> <span class="pre">$abs:</span> <span class="pre">-1</span> <span class="pre">}</span></code></td>
<td><code class="docutils literal"><span class="pre">1</span></code></td>
</tr>
<tr class="row-odd"><td><code class="docutils literal"><span class="pre">{</span> <span class="pre">$abs:</span> <span class="pre">1</span> <span class="pre">}</span></code></td>
<td><code class="docutils literal"><span class="pre">1</span></code></td>
</tr>
<tr class="row-even"><td><code class="docutils literal"><span class="pre">{</span> <span class="pre">$abs:</span> <span class="pre">null</span> <span class="pre">}</span></code></td>
<td><code class="docutils literal"><span class="pre">null</span></code></td>
</tr>
</tbody>
</table>
</div>
<div class="section" id="example">
<h2>Example<a class="headerlink" href="#example" title="Permalink to this headline">¶</a></h2>
<p>A collection <code class="docutils literal"><span class="pre">ratings</span></code> contains the following documents:</p>
<div class="button-code-block">
<div class="button-row">
<a class="code-button--copy code-button" role="button">
copy</a>
</div>
<div class="copyable-code-block highlight-javascript"><div class="highlight"><pre><span></span><span class="p">{</span> <span class="nx">_id</span><span class="o">:</span> <span class="mi">1</span><span class="p">,</span> <span class="nx">start</span><span class="o">:</span> <span class="mi">5</span><span class="p">,</span> <span class="nx">end</span><span class="o">:</span> <span class="mi">8</span> <span class="p">}</span>
<span class="p">{</span> <span class="nx">_id</span><span class="o">:</span> <span class="mi">2</span><span class="p">,</span> <span class="nx">start</span><span class="o">:</span> <span class="mi">4</span><span class="p">,</span> <span class="nx">end</span><span class="o">:</span> <span class="mi">4</span> <span class="p">}</span>
<span class="p">{</span> <span class="nx">_id</span><span class="o">:</span> <span class="mi">3</span><span class="p">,</span> <span class="nx">start</span><span class="o">:</span> <span class="mi">9</span><span class="p">,</span> <span class="nx">end</span><span class="o">:</span> <span class="mi">7</span> <span class="p">}</span>
<span class="p">{</span> <span class="nx">_id</span><span class="o">:</span> <span class="mi">4</span><span class="p">,</span> <span class="nx">start</span><span class="o">:</span> <span class="mi">6</span><span class="p">,</span> <span class="nx">end</span><span class="o">:</span> <span class="mi">7</span> <span class="p">}</span>
</pre></div>
</div>
</div>
<p>The following example calculates the magnitude of difference between
the <code class="docutils literal"><span class="pre">start</span></code> and <code class="docutils literal"><span class="pre">end</span></code> ratings:</p>
<div class="button-code-block">
<div class="button-row">
<a class="code-button--copy code-button" role="button">
copy</a>
</div>
<div class="copyable-code-block highlight-javascript"><div class="highlight"><pre><span></span><span class="nx">db</span><span class="p">.</span><span class="nx">ratings</span><span class="p">.</span><span class="nx">aggregate</span><span class="p">([</span>
   <span class="p">{</span>
     <span class="nx">$project</span><span class="o">:</span> <span class="p">{</span> <span class="nx">delta</span><span class="o">:</span> <span class="p">{</span> <span class="nx">$abs</span><span class="o">:</span> <span class="p">{</span> <span class="nx">$subtract</span><span class="o">:</span> <span class="p">[</span> <span class="s2">&quot;$start&quot;</span><span class="p">,</span> <span class="s2">&quot;$end&quot;</span> <span class="p">]</span> <span class="p">}</span> <span class="p">}</span> <span class="p">}</span>
   <span class="p">}</span>
<span class="p">])</span>
</pre></div>
</div>
</div>
<p>The operation returns the following results:</p>
<div class="button-code-block">
<div class="button-row">
<a class="code-button--copy code-button" role="button">
copy</a>
</div>
<div class="copyable-code-block highlight-javascript"><div class="highlight"><pre><span></span><span class="p">{</span> <span class="s2">&quot;_id&quot;</span> <span class="o">:</span> <span class="mi">1</span><span class="p">,</span> <span class="s2">&quot;delta&quot;</span> <span class="o">:</span> <span class="mi">3</span> <span class="p">}</span>
<span class="p">{</span> <span class="s2">&quot;_id&quot;</span> <span class="o">:</span> <span class="mi">2</span><span class="p">,</span> <span class="s2">&quot;delta&quot;</span> <span class="o">:</span> <span class="mi">0</span> <span class="p">}</span>
<span class="p">{</span> <span class="s2">&quot;_id&quot;</span> <span class="o">:</span> <span class="mi">3</span><span class="p">,</span> <span class="s2">&quot;delta&quot;</span> <span class="o">:</span> <span class="mi">2</span> <span class="p">}</span>
<span class="p">{</span> <span class="s2">&quot;_id&quot;</span> <span class="o">:</span> <span class="mi">4</span><span class="p">,</span> <span class="s2">&quot;delta&quot;</span> <span class="o">:</span> <span class="mi">1</span> <span class="p">}</span>
</pre></div>
</div>
</div>
</div>
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